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12月18号作业 js创建对象,定时器小案例
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创建对象

  1. <script type="text/javascript">
  2.     //创建对象 方法1：
  3.     var obj=new Object();
  4.     obj.name="张三";
  5.     obj.age="18";
  6.     obj.shuohua=function(){
  7.         console.log('我会说话');
  8.     }
  10.     //创建对象 方法2：
  11.     var obj2={
  12.         name:"李四",
  13.         age:"20",
  14.         shuohua:function(){
  15.         console.log('我说话');
  16.         }
  17.     }
  19.     console.log(obj2);
  20. </script>

传参

  1. <script type="text/javascript">
  2. var obj={
  3.         name:"李四",
  4.         age:"20",
  5.         shuohua:function(str){
  6.         console.log('我说话了：'+ str);
  7.         }
  8.     }
  9.     obj.shuohua('你好，js对象')
  10. </script>


定时器小案例

  1. <!DOCTYPE html>
  2. <html>
  3.     <head>
  4.         <meta charset="utf-8">
  5.         <title></title>
  6.     </head>
  7.     <body>
  8.         <button id="btn" onclick="send()" type="button">发送验证码</button>
  9.         <script type="text/javascript">
  10.             function send(){
  11.                 var flag=10;
  12.                 var txt=document.getElementById('btn').textContent;
  13.                 var tem = setInterval(function(){
  15.                     document.getElementById('btn').textContent = flag + '秒后重试';
  16.                     document.getElementById("btn").disabled=true;
  17.                     flag--;
  18.                     if(flag==0){
  19.                         clearInterval(tem);
  20.                         document.getElementById("btn").disabled=false;
  21.                         document.getElementById('btn').textContent =txt
  22.                     }
  23.                 },1000)
  24.             }
  25.         </script>
  26.     </body>
  27. </html>

Correcting teacher：天蓬老师天蓬老师

Correction status：qualified

Teacher's comments：原生代码,写得不错
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